Saw-guide.



.|. E. WILSON.

` sAw GUIDE. APPLICATION FILED AUG-B. 1914.

Patented July 20, 1915.

2 SHEETS-SHEET I www MMWSA @0.

L D. W. T a m m w o. c H P A. R u o m P M a M U L o c J. E. WILSON.

SAW GUIDE.

APPLICATION man Auw. 1914.

2 SHEETS-SHEET 2.

CULUMBIA PLANDGRAPH to., WASHINGTON. D. c.

JOHN E. WILSON, OF PEN ARGYL, PENNSYLVANIA.

saw-GUIDE.

Specification of Letters Patent.

Patented July 20, 1915.

Application mea August s, 1914. serieu No. 855,864.

To all whom t may concern.' Y

Be it knownthat I, JOHN E. WILSON, a citizen of the United States,residing at Pen Argyl, in thevcounty of Northampton-and State ofPennsylvania,` have invented certain new and useful Improvements in Saw-Gruides, 'of which the following is a specification, reference being hadtothe accompanying drawings.

This invention relates to certain improvements in saw guides and hasrelation more particularly to a device of this generalcharacterespecially designed and adapted for use for cutting mitersonany angle, either on planes at right angles to the base of thestructure or on angles oblique thereto; and the object of the inventionis to provide a device of this general character having novel andimproved means whereby the same may be assembled with convenience and1facility and whereby the guide frame may be effectively maintained inan adjusted position. e,

The invention consistsl in the details of construction and in thecombination and arrangement of the several partsofmyimprovedsaw guidewhereby certain important advantages are attained and the `device isrendered simpler, less eXpensiveand otherwise more convenient andadvantageous for use, all as will be hereinafter more fully set forth. eThe novel features of the inventioiiwill be carefully dened in theappended claims.

In order that my invention may, be,` the better understood, I will nowproceed to describe the same with .reference to the accompanyingdrawings,.wherein e Figure 1 is an elevational view of a saw guideconstructed in accordance with an em bodiment of my invention, a sawandthe work being indicated by dotted lines; Fig. 2 is an endelevational view of the device as herein embodied; Fig. 3 is a top planview thereof; Fig. 4 is a sectional view taken substantially on the line4-4 of Fig. `1; 5 is a sectional view taken substantially on the line5,-.-5 of Fig. 2; and Fig. 6 is a detail view, in elevation, of one ofVthe rods herein embodied. As disclosed in the accompanying drawings, ldenotes the base of the structure which is preferably of ,metalandisprovided along its longitudinal edgeswith the grooves-or channels 2to be engaged by the inturned anges formed on the base of the gage4. oAs herein disclosed, the gage 4 comprises a base 5 and a face plate 6,the latter being disposed at right angles to the longitudinal diameterof the base in order to assure the correct cutting of material where the`same is to be squared, and disposed throughthe base 5 is a set screw 7coacting 'with the base l, in a manner which is believed to beself-evident, and serving as a means whereby the gage 4 may be heldsecurely in position relative to the base.

Coacting with the gage 4 is a second gage 8 provided with a dependinglug 9 adapted tobe accommodated within the elongated slot 10 disposedlongitudinally of the base l at substantially its transverse center andwhich is adapted, when the occasion requires, to coact with the gage4 toeffectively clamp the Awork in operative position.` As herein disclosed,the requisite movement is imparted to the gageS through the medium ofthe screw member 11, herein disclosed as threadedI through the lowerportion of the standard 12 Vand in swiveled engagement with the gage8,`a`s indicated atl y i y Insuch instances when it is desired to `clamp.thebasel to the work or other supporting member, it will be readilyperceived that the` gage 4f may be inverted and the supplemental gage415 employed in connection therewith, such gage 15` beingprovided withthe inturned flanges 16 adapted to be accommodated within the grooves orchannels 2 and provided at its forward edge with thedepending lugs 17and having threaded therethrough the` clamping screw 18 which is adaptedto coact with the under face of the base 1 or to interlock with thethreaded opening 19 produced in the under face of thenlug 9 carriedA bythe gage 8. In this flatter instance, it will be readily perceivedthatthe supplemental gage l5 will be caused to move in unison with theadjustment of the gage 8.

` ,The standard 12, hereinbefore referred to, is herein disclosed astubular and is rigidly securedfadjacent one end of the base 1, andproduced .in such standard 12 is the elongated longitudinally disposedgroove or channel 20, in which isadapted to be pro jected the extension21 of the clamping screw 22threaded through the lower eXtremity ofasieeve 23 disposed around the standard 12, and whereby it will bereadily perceived. that the sleeve 23 is effectively held against rotarymovement relative to the Standard vand( may be clamped in variousadjusted positions longitudinally of the standard.

The lower extremity of the sleeve 23 is provided with an outwardlydisposed annular flange 24 to afford a circumferential shoulder, uponwhich rests a split collar 25, threaded into the rear wall of which is aset screw 2G and this screw is hollow to accommodate the plunger 27having a head 28, between which the outer wall of the set screw isarranged a coil spring 29, the function of which is to normally hold theplunger in engagement with the sleeve.

The collar 25 is held against downward movement upon the sleeve 23 bythefiange or shoulder 24 and is provided in register withthe inner end ofthe plunger 27 with a circumferential groove 30 and a series of orifices31 drilled through the base of the groove and arranged to be engaged bythe inner end of the plunger, whereby to lock the sleeve at any angle ofadjustment, the orifices being provided for setting the implement forcutting standard miters. If, however, it is desired to cut a miter,which would not be determined by any one of the orifices 31, then theset screw 26 would come into play, as this could be clamped at a pointbetween vany two of the orifices and thus firmly hold the collar againstturning.

The collar has projecting from it in parallel relation, two ears 32 and33, between which is arranged a scale arm 34 carried by .a face plate35, the arm being held pivotally connectedA with the ears by a bolt 36.In order to permit arcuate movement ofthe scale arm to allow a miter tocut at an obv lique angle to the vertical axis of the standard 12, thearm is provided with a grooved slot 37, through which projects a bolt 38engaged at one extremity by a thumb or wing nut 39.

The upper edge of the arm 34 is provided with a graduated scale 40coacting with a master mark 41 scored in the ears 32 and 33 andfby whichthe angle of adjustment of the face plate is determined.

Pivotally connected with the face plate 35, one adjacent to` each end,is a pair of links 42, the upper ends of which are pivotally connectedwith the top plate 43 of the frame of the saw guide. The pivotalconnection between one of the arms 42 and the plate 43 comprises a bolt44 and a thumb or wing nut 45, whereby it will be readily perceived thatthe requisite clamping action may be created in order to effectivelymaintain the plate 43 in a predetermined position or adjustment relativeto the face plate 35.

Y Projecting forwardly from the face plate 43 at the opposite endsthereof are the vertically spaced ears 45, in each series of which isAsuitably mounted the upper extremities of the vertically disposedparallel rods 46 depending a predetermined distance below the plate 43.While the rods 46 may be secured totheir coacting ears 45 in any mannerdesired, I prefer to provide each of such rods, adjacent its upper end,with a shoulder 47 a'dapted to abut one face of the lowermost ear 45,while the upper projected extremity of such rod is upset, as indicatedat 48.

The corresponding rods 45 of each set of rods are tied or connected by aplate 49 adapted to `abut the shoulders 50 produced on said rodsintermediate their length, and maintained in such contact through themedium of the fiber rollers 51 loosely mounted on the lower extremitiesof the rods and maintained in operative position through the medium ofthe detachable members 52, herein disclosed as conventional nuts or bursthreaded upon the rods.

As is believed to be obvious, a saw may be positioned between the rods46 with convenience and facility and the rollers 51 reduce to a minimumany friction occurring during the necessary reciprocation of the saw,and in such cases when the saw is a back saw,it will be readilyappreciated that the contact of the lowermost shoulders of the back withthe plates 49will limit the depth of the cut or penetration of the' saw.

It might be well to state that my device,

as herein disclosed, is yintended as `an im provement on the device asdisclosed in my co-pending application, Serial No. 828,855, led vMarch30,1914.

From the foregoing description, it is thought to be obvious that a sawguide constructed in accordance with my invention is of an extremelysimple and comparatively inexpensive nature and is particularly welladapted for use by reason of the convenience and facility with which itmay be assembled, and it will also be obvious that my invention issusceptible of some change and modiication without materialdeparturefrom the principles and spirit thereof and for this reason I donot wish to be understood as limiting myself to the precise arrangementand formation of the several parts herein shown in carrying out myinvention in practice.

I claim: v .j

1. In a saw guide, a base, a standard .projecting therefrom, a sleevemounted for longitudinalmovement on the standard but held from rotarymovement relative thereto, a collar vrotatably mounted on the sleeve,means for maintaining the collar at any desired adjustment relative tothe sleeve, an arm pivotally connectedfor vertical arcuate movement withthe collar and carrying a face plate, links pivotally connected with theface plate, a plate carried :by the upper ends of the links, a pluralityofpairs of forwardly directed transversely spaced ears projecting. fromthe plate, guide rods operatively supported by the ears, plates connectil 13o l 4 ing the guide rods, said plates serving as a means forcontrolling the depth of a cut, intermediate the lengths of such rods,and rollers carried by the rods below the plates.

2. In a saw guide, a base, a plate adjustably supported by the base, aplurality of pairs of transversely spaced ears projecting from theplate, each of said `pairs of ears being provided with alined openings,guide rods having their opposite extremities reduced, certain of saidreduced extremities being disposed through the alined openings of theears, the shoulder aorded by such reduced portions of the rods being inoontact With the adjacent ear, While the Jfree extremities of thereduced portions are provided with means coacting with the second earfor holding the rods in operative position, rollers mounted upon theopposite reduced extremities of the rods, and plates connecting thecorresponding rods of each pair of ears, said plates being interposedbetween the rollers and the shoulder aiorded by said second reducedportions, said plates serving as a means for controlling the depth of aout.

In testimony whereof I hereunto aiix my signature in the presence of tWoWitnesses. JOHN E. WILSON. Witnesses:

ARTHUR HULSIZER, JOHN BORMLY.

Copies of this patent may be obtained for ve cents each, by addressingthe C'ommissioner of Patents, Washington, D. G.

